Breathing exercise

In the rapid breathing exercise, Joe’s Tidal Volume slightly increased. It is supposed to either stay the same or decrease, because as Joe’s breaths become faster and he inhales more oxygen, his bodies need for CO2 becomes bigger, which should slow down his TV. The decrease in TV allows for more CO2 to be given to the body. This will also cause his respiratory rate to decrease as well as his B/M and L/M. c) Exercise Muscle exercise causes a buildup of CO2 in the muscles. Respiratory Rate, Minute Volume, and Tidal Volume will all increase both during and after exercise.

They will remain high after workout, because during recovery the rate stays high to reestablish the CO2/O2 balance in the blood. 2) Holding breath caused the greatest change in respiratory rate. Before the challenge it was 4. 8 b/m and post challenge it was 13. 95 b/m. Although holding breath caused the greatest change in respiratory rate, we would expect exercise to have the greatest chance, because carbon dioxide gets built up into the working muscles. This would increase your respiratory rate as your body tries to get rid of the carbon dioxide.

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Holding breath also caused the greatest change in tidal volume. Before the challenge it was . 94 L and after the challenge it was 2. 25 L. Exercise caused the greatest increase in minute ventilation. Before the challenge it was 6. 8 L/min and after the challenge it was 23. 08 L/m. Respiratory rate changed the most relative to its resting value with a 290% increase. 3) Breathing into a paper bag would increase the amount of CO2 that is breathed in. When Hyperventilation occurs, there is too much oxygen entering the body.

Breathing into a paper bag traps the CO2 and forces the subject to breathe more CO2 in than normal. This will cause less oxygen to enter the body, and in turn, allow the subject to calm down and return to normal breathing. Our body’s need a lot of 02 to function but too much can cause them to pass out. V. Conclusions: The objective of this lab was to get a reference of normal tidal volume and then to compare them to ones generated by various physiologic challenges. Then we had to correlate the findings with real-life situations.

The subject had to do a series of physiological challenges to determine what affect they would have on TV, RR, and MV. We used a test subject and they held their breath, did rapid breathing, and a simple exercise of squats. When we looked at the data we could see a definite change in Joe’s breathing after each physiological challenge. This show that when you use up more O2 than normal and your body has a buildup of CO2, it needs to get the O2 levels in your blood back to normal so your breathing rate is increased. This is why people are out of breath after some sort of physical activity.

How long it takes someone to catch their breath after a physical activity reflects their physical fitness. Someone with a higher fitness level will recover quicker after an exercise and their breathing rate will also return to normal faster than someone who is out of shape. In this lab as well as measuring someone’s breathing after a physical activity or holding their breath, we also measure their ventilation after forced hyperventilating. The first two experiments were to show a buildup of CO2 and the last one was to show an excess of O2 in the blood.

After the test subject did rapid breathing for 40 seconds their breathing rate actually slowed as opposed to increasing like after physical activity. After the O2 levels in their blood returned to normal the subject TV sped back up to the normal amount. If someone is actually hyperventilating they could potentially pass out because of there being too much O2 in their blood. To prevent that they are usually told to breathe into a paper bag which forces them to breath more CO2 into their bodies to make the levels return to normal.


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